Well on my 6.0 swap I did away with the TB heater connections, and have the hose run from the head to the radiator. It is plumbed into it about 6" below the cap. I got to thinking, that coolant from the radiator will want to go into the hose, when all its for is air/vapor whater to come out, so question is, should I tee it into the overflow, right below the rad cap, or is it fine to have it where I do, I can add a picture if needed.